Would an A-pillar-only roll bar be worth the time and money? I don't need or want a full cage, but it seems that every pic. of a rolled, seriously flopped, or wrecked XJ has the roof at the top of the windshield caved in. It would be made like the A-pillar section of PSC's cages--gusseted flat plates at the sides of the dash, bolted to the floor, and with bends in the top bar to clear the overhead console. Any thoughts?